#include <bits/stdc++.h>
using namespace std;
int n,r,t[100003],ans;
int main()
{
	freopen("duel.in","r",stdin);
	freopen("duel.out","w",stdout);
	scanf("%d",&n);
	while(n--)
	{
		scanf("%d",&r);
		++t[r];
		ans=max(t[r],ans);
	}
	printf("%d",ans);
	return 0;
}
